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What Is the Correct Electron Configuration of the Calcium Cation

Question 40

Multiple Choice

What is the correct electron configuration of the calcium cation?

A) 1s²2s²2p⁶3s²3p⁶4s¹
B) 1s²2s²2p⁶3s¹3p⁶4s²
C) 1s²2s²2p⁶3s²3p⁶
D) 1s²2s²2p⁶3s²3p⁶3d¹⁰

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